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Old 20th June 2005, 06:30 AM   #1
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Default apex jr alesis amps

I have 8 alesis amp modules as well as a bulk of lm388s chips. The queston is should i continue with these modules or change to gain clones and use a seperate active x-over and run gainclones? any responce from users of the alesis mod is apreciated
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Old 20th June 2005, 07:52 AM   #2
JZatopa is offline JZatopa  United States
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Are these the one with the active crossover in them? if you decide to get rid of them let me know.
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Old 20th June 2005, 04:00 PM   #3
Apex Jr is offline Apex Jr  United States
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Default Just to help out

I think these are the ones mentioned

I have sold out of them

Steve @ Apex Jr.
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Old 20th June 2005, 08:30 PM   #4
troystg is offline troystg  United States
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I have the same amps and chips.. I used the Alesis to create some 2 way monitors with a 5.25" woofer and Dayton tweeters. They work really well for the price.

I am STILL waiting / looking for the insulator pads for the LM3886 chips to finish 8 GC amps for Steve.

I used his torids, br, caps, wire, RCA's, binding posts, LM chips, and input filters to make some amps, but I can't mount the chips until I get the insulators and I'm not ordering JUST that from Digi-key...

Back to your question, The Alesis amps can be used as is and sound really good for the money.

The LM3886 chips can sound great, but then there is ALOT of auxiliary components to add.

If you HAVE to bi-amp then I would go with the Alesis mods.

If you can run full range, I would build a parallel LM3886 amp.
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Old 21st June 2005, 02:07 PM   #5
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it's a little bit difficult to get these insulator pads for the chipamps. I used two SOT93 Glimmer pieces and cut them to the fitting dimensions. They are much more cheaper than specialized insulators (around 5 Eurocent/Glimmer -> 10 Eurocent per chip. Especially for the bigger ones (LM4780)...

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Old 22nd June 2005, 02:48 AM   #6
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Check out the bergquist web site. You can order free samples. I got 2 4"x4" samples of K10 pad (kapton based), plus samples of three other types.

I cut some for my 4780's and it works great, no grease. Also using it for my Toshiba 2SC2565/1095 MT-200s.
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Old 22nd June 2005, 09:57 AM   #7
owen is offline owen  United Kingdom
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Hi, I've taken a look at the Bergquist site, and have not seen any 'samples' areas... Did you just request yours via contact us or similar..??


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Old 22nd June 2005, 10:33 AM   #8
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There is an "Order Samples" link on the home page (top right)...

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